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inysia [295]
4 years ago
12

When is the estimation of products a useful tool??

Mathematics
1 answer:
diamong [38]4 years ago
5 0
When estimating how much a building project will cost
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What is the 20th digit in the decimal expansion for the sum of 2/9 and 1/7
Ksivusya [100]

Answer:

The 20th digit is 6.

Step-by-step explanation:

1. Add 2/9 and 1/7.

2/9 + 1/7 = 23/63

2. Convert to a decimal.

23 ÷ 63 = 0.365079...

If you continue to divide, you will notice that the number repeat. So, the decimal would be 0.365079365079...

3. Find the 20th digit.

0.365079365079365079365079

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4 years ago
What is the radical form of the expression?
yan [13]
Last option. You got it.
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3 years ago
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The price of jeans was reduced $7 per week for 4 weeks. By how much did the price of the jeans change
Paha777 [63]

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$28

Step-by-step explanation:

The rate the jeans are reduced is $7 every week, if this continues for 4 weeks the total price of reduction for the jeans can be calculated by doing $7 x 4= $28.

6 0
3 years ago
Sarah earns a 5% commission for each house she sales. Write an equation that relates Sarah's total incomes (T), if she has a bas
jonny [76]

Answer:

T = 25000 + 0.05x

Step-by-step explanation:

Given

Salary = 25000

Commission = 5\%

Required

Write an equation when sales = x

The equation can be written as:

Total (T) = Salary + Commission * Sales

This gives

T = 25000 + 5\% * x

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T = 25000 + 0.05 * x

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3 years ago
Which property is shown by 9 8 = 8 9
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